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The focus of polynuclear aromatic hydrocarbons (PAH) in soil is set by first extracting the PAHs with methylene chloride. The extract is diluted, if necessary, as well as PAHs separated by HPLC employing a UV/Vis or fluorescence detector. Calibration is obtained utilizing one or more external requirements. In a typical analysis a two.013-g sample o

Sartobind® Phenyl membranes can be considered as a replacement to columns for polishing (circulation-through) operations and quite a few bind-and-elute purposes, since they get the job done at Substantially better flow rates, decreased complexity and with no measurement exclusion effects when purifying huge biomolecules.An HPLC program contains se